@reactivex/ix-esnext-esm/asynciterable/operators/dowhile.js

The Interactive Extensions for JavaScript

import { concat } from '../concat';
import { whileDo } from '../whiledo';
/**
 * Generates an async-iterable sequence by repeating a source sequence as long as the given loop postcondition holds.
 *
 * @export
 * @template TSource The type of elements in the source sequence.
 * @param {((signal?: AbortSignal) => boolean | Promise<boolean>)} condition Loop condition.
 * @returns {MonoTypeOperatorAsyncFunction<TSource>} An operator that generates an async-iterable by repeating a
 * source sequence while the postcondition holds.
 */
export function doWhile(condition) {
    return function doWhileOperatorFunction(source) {
        return concat(source, whileDo(source, condition));
    };
}

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